Faraday Rotator Glass Description
Faraday Rotator Glass is a novel and important transparent optical functional material in the high-tech field of optoelectronics. It has good transmittance in the visible and infrared bands (520~1400nm). It can rotate the polarization plane of a beam of light polarized parallel to the direction of the magnetic field. It is a glass functional material with a strong Faraday magneto-optical effect. Because of its "non-reciprocity", it can rotate the polarization planes of the forward incident light and the reverse incident light of the same wavelength to the same direction and the same angle, regardless of the direction of the beam propagation.
Faraday Rotator Glass Specifications
Material
|
TG20
|
TG28
|
Thermal coefficient of refraction (10-7/℃)
|
74
|
–
|
Optical path thermal coefficient (10-7/℃)
|
105
|
–
|
Transmission window (nm)
|
520-1400
|
520-1400
|
Thermal expansion coefficient (10-7/℃)
|
51.3
|
69
|
Transition temperature (℃)
|
760
|
759
|
Sag temperature (℃)
|
800
|
800
|
Density (g/cm3)
|
4.32
|
4.99
|
Young's modulus (GPa)
|
108
|
-
|
Poisson's ratio
|
0.22
|
-
|
Knoop hardness (Kg/cm2)
|
760
|
-
|
Optical and Spectral Properties
|
Refractive index (1064nm)
|
1.6721
|
1.736
|
Refractive index (@589.3nm)
|
1.6888
|
1.75
|
Nonlinear refractive index (10-13 e.s.u)
|
2.46
|
2.42
|
Abbe number
|
53.14
|
50.98
|
Faraday Rotator Glass Application
Faraday Rotator Glass is more suitable for medium and low-power lasers, and its cost is lower than other magneto-optical crystals such as TGG and TSAG. TG20 is widely used in switches, modulators, sensors, magneto-optical isolators, and other fields.
Faraday Rotator Glass Packaging
Our Faraday Rotator Glass is carefully handled during storage and transportation to preserve the quality of our product in its original condition.